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WISCONSIN UDC PLUMBING INSPECTOR PORTION EXAM
PRACTICE 2026/2027 COMPLETE (100) CURRENT TESTING
QUESTIONS AND CORRECT ANSWERS WITH DETAILED
RATIONALES.
PLUMBING
Prepare for the Wisconsin UDC Plumbing Inspector Portion Exam Practice with a
focused study resource designed to reinforce key plumbing inspection concepts
under Wisconsin's Uniform Dwelling Code. It supports review of plumbing system
installation, piping, fixtures, drainage and venting, testing, code interpretation, and
inspection requirements. Use the material to strengthen code application, improve
inspection judgment, and identify areas that may require additional review before the
examination. This resource is best suited for Wisconsin UDC Plumbing Inspector
candidates, plumbers, code enforcement professionals, and residential construction
inspectors preparing for the plumbing portion of the certification exam.
MULTIPLE CHOICE.
SECTION 1: ADMINISTRATION & ENFORCEMENT (SPS 305)
1. Under SPS 305.63, which certification allows a person to inspect one-
and two-family dwellings for plumbing code enforcement?
• A) Certified UDC-construction inspector only
• B) Certified UDC-plumbing inspector or certified commercial plumbing
inspector
• C) Certified UDC-HVAC inspector only
• D) Certified soil erosion inspector only
Answer: B) Certified UDC-plumbing inspector or certified commercial
plumbing inspector
Rationale: Per SPS 305.63(1)(b)4., a certified UDC-plumbing inspector or
certified commercial plumbing inspector may inspect one- and two-
family dwellings for the purpose of administering and enforcing chs. SPS
325, 382, and 384.
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2. According to SPS 305.63, which Wisconsin Administrative Code
chapters does a UDC Plumbing Inspector enforce?
• A) SPS 320-322 only
• B) SPS 323 only
• C) SPS 325, 382, and 384
• D) SPS 316 and 324
Answer: C) SPS 325, 382, and 384
Rationale: A certified UDC-plumbing inspector may inspect one- and two-
family dwellings for the purpose of administering and enforcing chs. SPS
325, 382, and 384.
3. Per SPS 305.63, no person may conduct the inspection of one- and two-
family dwellings for the purpose of administering and enforcing chs. SPS
320 to 325 unless the person holds what?
• A) A valid driver's license
• B) A contractor's license
• C) A certification issued by the Department
• D) A building permit
Answer: C) A certification issued by the Department
Rationale: Under SPS 305.63(1)(a), no person may conduct the inspection
of one- and two-family dwellings for the purpose of administering and
enforcing chs. SPS 320 to 325 unless the person holds one or more
certifications issued by the department.
4. Which of the following is a requirement for a certified UDC Plumbing
Inspector according to SPS 305.63?
• A) Maintain a record of inspections including dates and findings
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• B) Provide a copy of the inspection report to the property owner
• C) Make inspection records available to the Department upon request
• D) All of the above
Answer: D) All of the above
Rationale: A person who inspects one- and two-family dwellings as a
certified UDC Plumbing Inspector shall: maintain a record of inspections
including dates and findings; provide a copy of the inspection report to
the property owner or agent; and make records available to the
Department upon request.
5. Which of the following is the certifying authority for UDC Plumbing
Inspectors in Wisconsin?
• A) Department of Transportation (DOT)
• B) Department of Safety and Professional Services (DSPS)
• C) Department of Health Services (DHS)
• D) Department of Natural Resources (DNR)
Answer: B) Department of Safety and Professional Services (DSPS)
Rationale: The Wisconsin Department of Safety and Professional Services
(DSPS) administers the UDC Plumbing Inspector certification and
examinations.
6. The UDC Plumbing Inspector exam is an open book exam. What is the
passing score?
• A) 60%
• B) 70%
• C) 75%
• D) 80%
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Answer: B) 70%
Rationale: The UDC Plumbing Inspector exam is open book, and the
passing score is 70%.
7. Which of the following is NOT allowed as reference material during the
UDC Plumbing Inspector exam?
• A) Wis. Admin. Code § SPS 305 in a three-ring binder
• B) Wis. Admin. Code § SPS 320-325 in a three-ring binder
• C) Practice exams
• D) Printed notes that are three-hole punched and placed in a binder
Answer: C) Practice exams
Rationale: Practice or previous exams do not qualify as notes and are not
allowed. Printed code can only be brought into the exam if it is bound
together in a three-ring binder. Printed notes are allowed if three-hole
punched and placed in the binder.
8. When there is a change to Wisconsin codes, how long after the
effective date will exams cover the new codes?
• A) Immediately
• B) One month
• C) Three months
• D) Six months
Answer: C) Three months
Rationale: When there is a change to Wisconsin codes, exams will cover
the new codes three months after the effective date.
9. Which of the following reference materials is allowed in the UDC
Plumbing Inspector exam?
WISCONSIN UDC PLUMBING INSPECTOR PORTION EXAM
PRACTICE 2026/2027 COMPLETE (100) CURRENT TESTING
QUESTIONS AND CORRECT ANSWERS WITH DETAILED
RATIONALES.
PLUMBING
Prepare for the Wisconsin UDC Plumbing Inspector Portion Exam Practice with a
focused study resource designed to reinforce key plumbing inspection concepts
under Wisconsin's Uniform Dwelling Code. It supports review of plumbing system
installation, piping, fixtures, drainage and venting, testing, code interpretation, and
inspection requirements. Use the material to strengthen code application, improve
inspection judgment, and identify areas that may require additional review before the
examination. This resource is best suited for Wisconsin UDC Plumbing Inspector
candidates, plumbers, code enforcement professionals, and residential construction
inspectors preparing for the plumbing portion of the certification exam.
MULTIPLE CHOICE.
SECTION 1: ADMINISTRATION & ENFORCEMENT (SPS 305)
1. Under SPS 305.63, which certification allows a person to inspect one-
and two-family dwellings for plumbing code enforcement?
• A) Certified UDC-construction inspector only
• B) Certified UDC-plumbing inspector or certified commercial plumbing
inspector
• C) Certified UDC-HVAC inspector only
• D) Certified soil erosion inspector only
Answer: B) Certified UDC-plumbing inspector or certified commercial
plumbing inspector
Rationale: Per SPS 305.63(1)(b)4., a certified UDC-plumbing inspector or
certified commercial plumbing inspector may inspect one- and two-
family dwellings for the purpose of administering and enforcing chs. SPS
325, 382, and 384.
, Page 2 of 41
2. According to SPS 305.63, which Wisconsin Administrative Code
chapters does a UDC Plumbing Inspector enforce?
• A) SPS 320-322 only
• B) SPS 323 only
• C) SPS 325, 382, and 384
• D) SPS 316 and 324
Answer: C) SPS 325, 382, and 384
Rationale: A certified UDC-plumbing inspector may inspect one- and two-
family dwellings for the purpose of administering and enforcing chs. SPS
325, 382, and 384.
3. Per SPS 305.63, no person may conduct the inspection of one- and two-
family dwellings for the purpose of administering and enforcing chs. SPS
320 to 325 unless the person holds what?
• A) A valid driver's license
• B) A contractor's license
• C) A certification issued by the Department
• D) A building permit
Answer: C) A certification issued by the Department
Rationale: Under SPS 305.63(1)(a), no person may conduct the inspection
of one- and two-family dwellings for the purpose of administering and
enforcing chs. SPS 320 to 325 unless the person holds one or more
certifications issued by the department.
4. Which of the following is a requirement for a certified UDC Plumbing
Inspector according to SPS 305.63?
• A) Maintain a record of inspections including dates and findings
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• B) Provide a copy of the inspection report to the property owner
• C) Make inspection records available to the Department upon request
• D) All of the above
Answer: D) All of the above
Rationale: A person who inspects one- and two-family dwellings as a
certified UDC Plumbing Inspector shall: maintain a record of inspections
including dates and findings; provide a copy of the inspection report to
the property owner or agent; and make records available to the
Department upon request.
5. Which of the following is the certifying authority for UDC Plumbing
Inspectors in Wisconsin?
• A) Department of Transportation (DOT)
• B) Department of Safety and Professional Services (DSPS)
• C) Department of Health Services (DHS)
• D) Department of Natural Resources (DNR)
Answer: B) Department of Safety and Professional Services (DSPS)
Rationale: The Wisconsin Department of Safety and Professional Services
(DSPS) administers the UDC Plumbing Inspector certification and
examinations.
6. The UDC Plumbing Inspector exam is an open book exam. What is the
passing score?
• A) 60%
• B) 70%
• C) 75%
• D) 80%
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Answer: B) 70%
Rationale: The UDC Plumbing Inspector exam is open book, and the
passing score is 70%.
7. Which of the following is NOT allowed as reference material during the
UDC Plumbing Inspector exam?
• A) Wis. Admin. Code § SPS 305 in a three-ring binder
• B) Wis. Admin. Code § SPS 320-325 in a three-ring binder
• C) Practice exams
• D) Printed notes that are three-hole punched and placed in a binder
Answer: C) Practice exams
Rationale: Practice or previous exams do not qualify as notes and are not
allowed. Printed code can only be brought into the exam if it is bound
together in a three-ring binder. Printed notes are allowed if three-hole
punched and placed in the binder.
8. When there is a change to Wisconsin codes, how long after the
effective date will exams cover the new codes?
• A) Immediately
• B) One month
• C) Three months
• D) Six months
Answer: C) Three months
Rationale: When there is a change to Wisconsin codes, exams will cover
the new codes three months after the effective date.
9. Which of the following reference materials is allowed in the UDC
Plumbing Inspector exam?
